Have you ever noticed those words or phrases with a ‘#’ symbol in front, like #JustForFun or #WorldEnvironmentDay, popping up on social media posts? These are called hashtags, and they play a big role in what we see trending online.A hashtag is basically a label. When you include a hashtag in your post—whether it’s a photo, video, or tweet—you’re grouping your content with everyone else using that same hashtag. Think of it like putting your story in a giant folder that anyone can look through, even people who don’t follow you. This makes it much easier for others to discover your content.But hashtags do more than just organise posts. They help topics, events, and even jokes spread fast. Let’s say thousands of people use #SummerGoals during the school holidays. Anyone searching that hashtag can instantly see what others are doing—whether it’s travel, sports, or learning a new skill. As more people join in, the hashtag becomes more visible. When a hashtag is used very frequently within a short time, it starts “trending,” which means it appears in the “trending” section of apps like Instagram, Twitter, or YouTube.Trending hashtags are powerful because they put ideas in front of huge audiences. Sometimes, they raise awareness about important causes, such as #SaveTheTigers or #EarthHour. Other times, they launch viral challenges, share breaking news, or simply make people laugh.Hashtags can even cross country borders, letting someone in India see and join a conversation started in another part of the world. Because of this, hashtags connect people, spread information, and sometimes even influence real-world events.So, the next time you use a hashtag, remember: you’re not just tagging a photo—you’re joining a much bigger conversation that could go global! Hashtags were invented by accidentThe first hashtag was suggested by Chris Messina on Twitter in 2007. He wanted an easy way for people to follow groups and topics. The word “hashtag” was added to the Oxford English Dictionary in 2014It quickly became part of everyday language thanks to social media.The most popular hashtag of all time is #loveMillions of people have used it to share happy moments and positivity.